Skip to main content
. Author manuscript; available in PMC: 2017 May 1.
Published in final edited form as: Sleep Med. 2016 Feb 12;21:12–18. doi: 10.1016/j.sleep.2016.01.011

Table 1.

Prevalence of insomnia symptoms and insomnia among adolescents in National Comorbidity Survey Replication Adolescent Supplement (NCS-A) (N = 9582)

Symptoms (2 weeks or longer in the past year) Yes No Percent (%)
Took a long time to fall asleep 2,133 7,448 22.26
Took long time to get back to sleep 1,288 8,294 13.44
Woke up too early 1,615 7,966 16.86
Daytime sleepiness 3,601 5,981 37.58
Insomnia 2065 7,517 21.55

Insomnia was defined as having at least one of the three primary sleep problems (long time to fall asleep, get back to sleep, or wake too early) with daytime sleepiness for two weeks or longer in the past year. Note: The first and third rows do not sum to 9582 due to one respondent with missing data.